Police said they would talk to her relatives and friends to determine the cause behind the incident.
The students body was found when police and rescue workers rushed to the condominium in Soi Bang Na Garden 10 at 7am.
In another incident, a 19-year-old law freshman at university in Songkhla's Hat Yai district was found hanged in a toilet at a dormitory on campus on Thursday morning.
He apparently left a goodbye message at 4am on Facebook apologising to his parents and friends for his solution to "personal problems”.
Following the suicide report at 6am, rescue workers broke open the locked toilet door to reach Ekkarat (lats name withheld).